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Roses are blue - Marvin and Milo

A Marvin and Milo activity about capillary action. All you need is a white flower, vase, water, food colour and scissors.

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http://www.physics.org/marvinandmilo.asp?id=70

Scattering of light in the atmosphere

Find out how light scattering makes the sky blue and clouds white.

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http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/opt/mch/sct.rxml

Laptop Screens

You can think of the laptop screen as made up of a lot of tiny cells. White light coming from behind the screen passes through each cell and emerges toward you as you watch the screen.

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http://www.colorado.edu/physics/2000/laptops/index.html

TV Screens

This site gives an in depth explanation of how televisions work and how TV screens display images (both colour and black and white). The site also includes information on Liquid Crystal Displays ...

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http://www.colorado.edu/physics/2000/tv/index.html
hyperphysics

Pink Noise

Whereas white noise is defined as sound with equal power per Hz in frequency, pink noise is filtered to give equal power per octave or equal power per 1/3 octave.

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http://hyperphysics.phy-astr.gsu.edu/hbase/audio/equal.html#c4
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